:root {
  --bg: #0a0e17;
  --bg-elevated: #111827;
  --bg-card: #151c2c;
  --fg: #e2e8f0;
  --fg-muted: #94a3b8;
  --fg-dim: #64748b;
  --accent: #10b981;
  --accent-dim: rgba(16, 185, 129, 0.15);
  --accent-glow: rgba(16, 185, 129, 0.08);
  --border: rgba(148, 163, 184, 0.1);
  --border-accent: rgba(16, 185, 129, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--fg);
  letter-spacing: -0.5px;
}

/* ---- HERO ---- */
.hero {
  padding: 160px 24px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 32px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 56px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 680px;
  margin: 0 auto;
}
.stat {
  background: var(--bg-card);
  padding: 28px 20px;
  text-align: center;
}
.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}
.stat-label {
  display: block;
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.4;
}

/* ---- PROBLEM ---- */
.problem {
  padding: 100px 24px;
  border-top: 1px solid var(--border);
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 48px;
  text-align: center;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s;
}
.problem-card:hover {
  border-color: var(--border-accent);
}
.problem-icon {
  font-size: 24px;
  color: #ef4444;
  margin-bottom: 16px;
  font-weight: 700;
}
.problem-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--fg);
}
.problem-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-muted);
}

/* ---- FEATURES ---- */
.features {
  padding: 100px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.features-header {
  text-align: center;
  margin-bottom: 56px;
}
.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.features-header p {
  font-size: 16px;
  color: var(--fg-muted);
  max-width: 540px;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}
.feature-large {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 24px;
  align-items: start;
}
.feature-large .feature-tag {
  grid-row: 1;
}
.feature-large h3 {
  grid-row: 1;
  align-self: center;
}
.feature-large p {
  grid-column: 1 / -1;
}
.feature-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--accent-dim);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 14px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-muted);
}

/* ---- COMPARISON ---- */
.comparison {
  padding: 100px 24px;
  border-top: 1px solid var(--border);
}
.comparison-inner {
  max-width: 800px;
  margin: 0 auto;
}
.comparison h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  text-align: center;
  margin-bottom: 48px;
}
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
thead th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-card);
}
thead th.highlight {
  color: var(--accent);
  background: var(--accent-dim);
}
td:first-child {
  font-weight: 500;
  color: var(--fg);
}
td.highlight {
  background: var(--accent-glow);
  font-weight: 600;
}
td.yes { color: var(--accent); }
td.no { color: #ef4444; }
td.partial { color: #f59e0b; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover {
  background: rgba(255,255,255,0.02);
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}
.closing::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.closing-inner {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.closing p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.closing-accent {
  color: var(--accent) !important;
  font-weight: 500;
  font-size: 17px !important;
}

/* ---- FOOTER ---- */
.footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.footer-brand {
  margin-bottom: 32px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--fg-dim);
  margin-top: 8px;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--fg-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero { padding: 120px 20px 60px; }
  .hero-stats { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large {
    grid-column: span 1;
    display: block;
  }
  th, td { padding: 10px 14px; font-size: 13px; }
}
@media (max-width: 480px) {
  .hero h1 { letter-spacing: -1px; }
  .problem, .features, .comparison, .closing { padding: 64px 16px; }
}